Art of manufacturing water bottles



Jan. 16, 1923. v l. WLPATTERSON.

ART OF MANUFACTURING WATER BOTTLES.

2 SHEETSSHEET 1.

FILED DEC. 19, 192!- Invenfiar John WPwfiarsam J. W. PATTERSON.

ART OF MANUFACTURING WATER BOTTLES.

FILED MC. 19. I921- 2 SHEETS-SHEET 2.

Jan. 16, 1923. r I 1,442,357.

Invemfior John '14. Pafbersaw Patented Jan. 16, ll923.

J OHN W. EATTER SON', OF NEW HAVEN, CONNECTICUT, ASSL'GN RUBBER COMPANY,INC., OF NEl/V HAVEN, CONNECTI MASSACHUSETTS.

OR TO THE SEAMLESS OUT, A CORPORATION OF ART OF MANUFACTURING WATERBOTTLES.

Application filed December 19, 1921.

To all whom it may concern Be it known that 1, JOHN W. PATTERSON, acitizen of the United States, residing at New Haven, in the county ofNewHaven and State of Connecticut, have invented a certain new and usefulImprovement in the Art of Manufacturing Water Bottles, of which thefollowing is a full, clear, and exact description.

This invention relates to the art of manufacturing water bottles out ofrubber or analogous substances and with regard to certain more specificfeatures thereof it relates to the process of producing a rubbercontainer or bottle having a constricted neck of particular form andhomogeneous relation with the body and filler spout of the bottle.

I am aware of the fact that bottles of this character have beenpreviously constructed with a constricted neck and flared filler spout,but in each instance of previous construction the neck has been formedin a piece separate from the body and filler spout of the bottle and hasbeen cemented in position, wired about the exterior of the bottle andcovered with a rubber band. I am also aware that bottles of this generalcharacter have been constructed by means of a process which comprisesthe formation of the bottle within mold sections and around a core, andsubsequently drawing the core through an aperture in the base of thebottle. My in vention makes it possible to form a bottle with aone-piece heat insulating neck, flared filler spout, and body ofsubstantial capacity, in a manner, which is quick, ineXpen sive andhighly reliable and produces an extremely durable bottle and one inwhich the possibility of leakage is eliminated. I produce by'my processa bottle which is highly desirable in a commercial way by reason of thefact that it can be gripped at the neck by the fingers in such mannerthat the filler spout may be fully opened to receive the hot waterwithout possibility of discomfort tothe person filling the bottle on account of heat penetration to the outer surfaces of the bottle at theneck region. Yet, at the same time when the bottle is filled and themetal stopper has been inserted, the

' flared filler spout may by its resiliency resume its normally flatcondition so that when in use it will be comfortable andbecause of as at17.

Serial 1V0. 523,418.

the elimination of cemented joints it will be non-leakable. My inventionaccordingly LC ODS1StS 1I1 the various steps and combinaions of steps ofthe process by which my nnproved bottle is produced.

in the drawings there is shown one of various possible means ofefiecting my process and in these drawings:

Flg. 1 18 a view of one female mold element with the two-part coreassembled therewith.

Fig. 2 is a view in vertical central section through Fig. 1.

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1.

Fig. 4 is a sectional-view taken on the line H of Fig. 1.

Fig. 5 is a sectional view taken on the line 5-5 of ig. 1.

Fig. 6 is a view taken in cross section along the central line of thecore elements with the female mold sections removed, showing the moldedbottle assembled around the core elements.

- Fig. 7 is a view of the bottle showing the rubber insert which isvulcanized with the body of the bottle to seal the aperture at the baseand provide a tab by which the bottle may be suspended from its bottomend.

Fig. 8 is a view in front elevation of the completed bottle.

Fig. 9 is a view of the upper part of the bottle split centrally andiiatwise to show clearly the integral flange of rubber and the metalthimble associated with the body and filler spout of the bottle duringthe molding operation.

Referring now more particularly to the drawings there is indicated at 10one of the female or external mold elements with which, in the formationof the bottle a core assembly 11 and an opposed female or external moldelement 12 are associated. Suitable dowel pins and apertures areprovided for correctly associating the molding elements and these areindicated generally at 13 The core assembly 11 is composed of two mainelements i l and 15. The element 14: consists of a skirt or sleevehaving a reduced cylindrical end 16 and internally-bored The coreelement 15 comprisesthe flat and wide body memberlB, having a tongue orupwardly extending pin 19 ass0- ciated with a shaft extension 20 adaptedfor easy sliding fit within the bore 17 of the sleeve or skirt 1 1-.

In assembling the apparatus to make ready for the vulcanizing operationa thread ed metalthimble introduced over the reprocess of manufacture ofthe bottle the fiangefla serves to hold the metal thimble 23 inassembled position on the core element 141 by reason of its engagementwith flange 25 on"theshaftextension 20. ith the thimble in place on thesleeve lat and theshaft 20 in position with its flange 25 registeringagainst the flange 24 of t-he'metal thimble a wedge member 26 isintroduced ina-slot in the upper end of the shaft 20 to draw and holdthe thimble and parts in molding relation.

The core element 15 is preferably associated with the element 14 byengaging the pin or tongue 19 with an assembly comprising the sleeve14:, theshaft 20, and the wedge 26, although it may be associated byfirst assembling the shaft 20 upon the core member 18 and thenintroducing the shaft 20 to the sleeve 14.

With the core assembly complete and the metal thimble contained thereon,suitable strips or portions of rubber" stock are laid on the lowerfemale or external mold element 10 andthe core assembly in turnsuperposed.

Then additional rubber strips and portions are positioned upon the coreassembly and V the upper female or external mold element is placed inposition completing the mold assembly. Suitable locking means (notshown) maybe employed, if desired, and then the complete assembly isintroduced to -the action of a vulcanizing press. It should be noted atthis point that the molding elements are so constructed and associatedthat between the flared filler spout and the body 31 of the bottle thereis provision for producing a constricted neck 32 having an interiorlyextending flange 83 which terminated in the metal thimble 23, Thesemoldele- :ments are furtherconstructed andassociated so that the-flange33 o f-the neclrportion 32 will be (if-substantial dimension in adirection flatwise of the bottle and will be considerably less indimension crosswise of the hot- 1 tle. This configuration will beclearly "seen in Figs-,4, 6, and 9 of the drawings.

hen the molding assembly is withdrawn from the 'vulcanizing pressthereisfor-med therein a" rubber water bottle with a thickenct rubberflange at its neek're ion which obviously "willj p re'vent w'ithdrawal"of the large core element 15 through the neck portionof the bottle.Therefore, the core element 15 is provided with an extension 10 whichco-operates with the female mold ele- 'ments to leave in the moldingoperation a sizable aperture at the base of the bottle through which thecore section 15'1nay be withdrawn by slightly stretching the body of thebottle at the base region. Consequ ently, when the assembly is removedfrom the vulcanizing press and the external mold elements separated, thelower half, sect-ion 'of the core assembly is withdrawn through thebaseof the bottle and the upper half 1 1 of the coreassembly is withdrawnfrom the neck and filler spout of the bottle. The thimble 23 is ofcourse retained in the mold ed bottle due to the fact that the rubber inthe flange, portion of the neck has formed itself in the vulcanizingoperation in and around the threads of the thimble.

l/Vhile, as hereinbefore noted, the assembly of the core elements mayconsist in associating the shaft 20, the sleeve 14, and the wedge 26 sothat the thimble 33 will be arranged and held in position andsubsequently the core element 15 may be joined to the assembly byengaging the pin 19 with the shaft 20 at a bore in the lower end of theshaft, it is desirable in dismantling the core elements that the bodymember 15 and the shaft 20 be removed through the aperture at the baseofthe bottle. This is on account of the shoulder 25 011 the shaft 2-0which prevents its removal through the neck 33 and thimble 23. y i

' After the removal of all oft-he molding ele- 111811133 the bottle is:subjected to a second molding operation whereby a blank of unvulcanizedrubber 50 (Fig. 7) is vulcanized with the base'of the bottle to closethe aperture through which the core was withdrawn, and provide a tab 60by means of which the bottle may be suspended in in verted position.

My "improved process of manufacturing wide-mouthed water-bottlesincreases the speed with which bottles of this type may be manufactured,eliminates many labor operations heretofore necessary in connection withthe manufacture of bottles of this general type and produces a. bottlewhich is sightlierandmore durable than has heretofore been 7 produced Aschan 'esmight be made in ,the various steps and-actions hereinbeforespecified. as aprefer-red form of carrying outiny process, withoutdeparting from the actual scope oftheinvention it is intended that theforegoing description and accompanying drawings-be ;interpreted-- asillustrative and not ina; limiting sense. i It is to be notedparticularly that'other methodsof' with- '1 :drawin -theprinciaL-eereelements may be employed,- as, for-example, by "withdrawing thecore elements through. the side walls or edges of the body of thebottle, or any other suitable method.

I claim the following:

1. The process of making flat water bottles which consists in assemblinga metal thimble upon a core element, assembling female mold elementswith suitable rubber stock around said core element and said thimble,the shape and assembly of said fe male mold elements being such that amold cavity of substantially elliptical form is provided around thethimble with the major axis of the ellipse extending fiatwise, andVlllCilIllZlllg the rubber stock of said mold elements to produce a flatrubber bottle having an integral flange forming the neck portion.

2. The process of making fiat water hottles which consists in theassembly of rubber stock with male and female mold elements, the femalemold elements being shaped to provide a mold cavity at the neck portionof the bottle which cavity is substantially elliptical, the male moldelement comprising a core on which a thimble is arranged, the moldelements being correlated in assembly so as to centrally dispose themale element in the elliptical cavity provided by the female moldelements, and the viilloanizing of the said rubber stock, with the moldelements so assembled, to produce a flat rubber bottle having anintegralrubber flange forming the neck portion.

3. The process of making fiat Water bottles which consists in assemblinga metal thimble upon a core element, attaching a detachable core elementwith the first said element, assembling two female mold elements withsuitable rubber stock around said core ele ments and said thimble theshape and assembly of said female mold elements being such that a moldcavity of substantially elliptical form is provided around the thimblewith the major axis of the ellipse extending flatwise, vulcanizing therubber stock of said mold elements to produce a flat rubber bottlehaving an integral rubber flange forming the neck portion, withdrawingthe first said core element from the thimble leaving the thimble in therubber flange of elliptical form, withdrawing the second core elementthrough an aperture in the body of the bottle, and sealing the bottle atthe aperture 0nd core element was withdrawn.

JOHN W. PATTERSGN.

through which the sec--

